Fire extinguishing system



w. M. THOMPSON 2,521,193

FIRE EXTINGUISHING SYSTEM Filed Feb. 1, 1947 Z'mventor u WM W H GflornegPatented Sept. 5, 1950 FIRE EXTINGUISHING SYSTEM William M. Thompson,Erie, Pa., assignor to Thompson Mfg. 00., Inc., Erie, Pa., 2.corporation of Pennsylvania.

Application February 1, 1947, Serial No. 725,795

2 Claims.

This invention is intended to increase the utility of portable fireextinguishers by detachably connectin the horn to a pipe line leading toa location of high fire hazard. The extinguisher is thus normally inreadiness to extinguish fires at this location without impairing itsutility as a portable extinguisher for fires at other locations. In apreferred form, the holder has a stand pipe with its upper end receivingthe horn and its lower end connected to the pipe line leading to thelocation of high fire hazard. Further objects and advantages appear inthe specification and claims.

In the drawing, Fig. 1 is a perspective of a holder for a C02 fireextinguisher and Fig. 2 is a sectional view of a typical installation.

Referring to the drawing there is shown a portable fire extinguisherhaving a cylinder l containing CO2 and provided with a handle 2 and avalve 3 controlling the flow of CO2 through a flexible hose 4 to a horn5. At the base of the horn is a disk ii having an orifice l permittingthe desired flow. These parts are or may be of common construction.

The cylinder is stored in a holder having a base 8 provided with anupwardly extending seat 9 for the lower end of the cylinder. The basemay be ermanently mounted for example by screws in in a floor i I orother support. Extending from the base are arms l2 carrying a ring [3through which the cylinder may be lowered into its seat. The ringcooperates with the cylinder side Walls and holds the cylinder upright.This is of particular advantage in marine installations. A rubber band Mon the cylinder prevents rattling.

At one side of the base is a stand pipe 15 havlllg its upper endreceivable in the horn as the cylinder is lowered into the holder. Atthe upper end of the standpipe is a rubber bushing l6 having its sidesengaging the inner surface of the horn and having a conical end I!making sealing engagement with the disk 6 around the orifice I. Thebushing I6 is positioned so the horn seals with the standpipe as thecylinder is lowered into the holder. The seal is normally effected bygravity but if the weight of the horn is insufiicient an additional holddown may be provided. The relatively small diameter of the orifice 1reduces the back pressure tending to lift the horn oil? the standpipe.The lower end of the standpipe is connected through a passage way l8 toa fitting 19 connected to a pipe line 20 leading 2 to a region of firehazard. The line 20 may have one o more discharge horns 2| which, in thecase of marine installations, may discharge in the engine room or anyother desired location.

The extinguisher is thus at all times ready to discharge CO2 through thehorn 2i to a region of known fire hazard.

The extinguisher is also at all times capable of being used as aportable extinguisher for fires in other locations by merely lifting theextinguisher from its holder. This increases the utility of the fireextinguisher without decreasing the availability of the extinguisher forfires in any location other than that served by the pipe line 20.

What I claim as new is:

1. In a fire extinguishing system for portable extinguishers oi the typehaving a C02 container connected by a flexible hose at its upper end toa discharge horn, the combination of a holder having an upwardlypresented seat for the container, a standpipe at one side of the seatreceivable in the horn as the container is lowered into its seat, amember of resilient material forming a seal between the standpipe andhorn, and a pipe line leadin from the standpipe to a region of firehazard.

2. In a fire extinguishing system for portable extinguishers of the typehaving a C02 cylinder connected by a flexible hose at its upper end to adischarge horn, the combination of a holder having an upwardly presentedseat for the cylinder including a ring surrounding the cylinder sidewalls, a standpipe carried by the holder at one side of the seatreceivable in the horn as the cylinder is lowered into its seat, arestricted orifice at the base of the horn, a member of resilientmaterial forming a seal between the standpipe and the portion of thehorn around the orifice, and a pipe line leading from the standpipe to aregion of fire hazard.

WILLIAM M. THOMPSON.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,616,974 Josephson Feb. 8, 19271,744,733 Beames Jan. 28, 1930 2,050,032 Allen Aug. 4, 1936

